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Readers wishing to extend their mathematical skills will find this volume a practical companion. Easy-to-follow explanations cover fractions, decimals, square roots, metric system, algebra, more. 195 figures. 1943 edition.
This antiquarian book comprises a comprehensive and practical handbook on modern watches, with information on the history and development of watches, on cleaning them, repairing them, and much more. Written in clear, concise language and containing a plethora of useful diagrams and photographs, this text will be of considerable value to anyone with a keen interest in watches, and would make for a great addition to collections of watch and clock-related literature. The chapters of this volume include: Time and the Origin of Watches, Tools and Materials, The Parts of a Watch, The Compensating Balance and the Hair-spring, Lever Escapement, Cylinder Escapement, Dismantling: Fitting Winding Shafts, Fitting Mainsprings, Cleaning a Watch, et cetera. This antiquarian book is being republished now complete with a new introduction on the history of clocks and watches.